Bitcoin

It's shaping up to be a pretty ugly day for Bitcoin. After soaring past $250 earlier , it's tumbled all the way down to current levels around $135. Bitcoin is now 50 percent off its intraday high of $266. The chart below shows Bitcoin prices since April 9. The big sell-off underway right now is shown on the far right. bitcoin.clarkmoody.com As the chart shows, the virtual currency briefly staged a sizeable comeback this afternoon before getting slammed again. The biggest question everyone has had about Bitcoin in recent weeks – aside from how it works – is whether or not it's in a bubble . After all, the virtual currency has seen a remarkable rise since January, when it was trading below $15. Already this afternoon, since the plunge began, we've seen some interesting defenses of the virtual currency popping up on the Internet. A Reddit user posted a graphic showing the Spa...